One of the hardest parts of management is letting go. Not doing the work yourself. You have to temper your fear that becoming more hands-off will cause the product to suffer or the project to fail. You have to trust your team—give them breathing room to be creative and opportunities to shine.

But you can’t overdo it—you can’t create so much space that you lose track of what’s going on or are surprised by what the product becomes. You can’t let it slide into mediocrity because you’re worried about seeming overbearing. Even if your hands aren’t on the product, they should still be on the wheel.

Examining the product in great detail and caring deeply about the quality of what your team is producing is not micromanagement. That’s exactly what you should be doing. I remember Steve Jobs bringing out a jeweler’s loupe and looking at individual pixels on a screen to make sure the user interface graphics were properly drawn. He showed the same level of attention to every piece of hardware, every word on the packaging. That’s how we learned the level of detail that was expected at Apple. And that’s what we started to expect of ourselves.

As a manager, you should be focused on making sure the team is producing the best possible product. The outcome is your business. How the team reaches that outcome is the team’s business. When you get deep into the team’s process of doing work rather than the actual work that results from it, that’s when you dive headfirst into micromanagement. (Of course sometimes it turns out that the process is flawed and leads to bad outcomes. In that case, the manager should feel free to dive in and revise the process. That’s the manager’s job, too.)

The Google teams with whom we’d planned to integrate and codevelop technologies and products were reluctant to work with us. They kept asking their execs for more details to figure out if they really had to help us at the expense of their own projects. Why? Why? Why do we have to help a team that isn’t Google? Over the subsequent months, every time we had to clarify yet again for customers that Nest was separate from Google, our internal reputation took another hit.

I should have remembered what it was like at Apple during the very first months when we started building the iPod. It just didn’t occur to me—Nest was so much bigger and more established than my tiny iPod team, I thought this was a completely different situation. But it was exactly the same. Back then Apple’s executive antibodies saw us coming to take their time and draw away their resources, so they tried to block our way and ignore our requests.

That’s when Steve Jobs gave us air cover, dropped bombs on the teams who were slowing us down, forced the issue, yelled sometimes to make sure we got what we needed. Steve Jobs fighting for us was ultimately what allowed us to succeed.

When Larry told me during acquisition that Google would marshal the team and align their priorities with ours, he was 100 percent telling the truth. But what that looked like at Google was giving the team the skeleton of a plan and letting them fill in the rest as they went. Then they’d have a meeting every so often to ask how things were going.

But I had interpreted his words through an Apple lens. If Steve Jobs said he was going to marshal the team, that meant he was going to be there every step of the way—weekly, sometimes daily. He’d assemble everyone, tell them where to go, make sure they were marching together, and drag any stragglers back in place by sheer force of will.

Google Ventures, now known as GV, was an investor. They knew our financials and had always been extremely supportive, so I wasn’t worried about the number. I was worried about which teams we’d work with, what technology we’d share, what products we’d build. Nest wasn’t joining Google for the money—we were joining to accelerate our mission. So it was always mission first, money second.

Together with Google, we went through every single function—marketing, PR, HR, sales, every part of the company. We established where we could create synergies and where we couldn’t, figured out which managers would be assigned to us, how we would do the hiring, which perks people would get, which salaries they could expect, which teams would be working together closely, and how those relationships would be established.

It took a lot of time. In fact I was starting to get a lot of eye rolls. “Really, Tony? You want to get into the details of this now?” Yes, yes, I do. It’s important.

And it was—critically important and usually overlooked.

Most acquisitions are driven and overseen by bankers, and bankers only make the real money if the deal goes through, so they’re motivated to move fast and get paid. They don’t care about getting every detail of what happens to employees right. They don’t really care about cultural fit. Not deeply.

Plenty of people warned me that the worst thing I could do was let Steve into the company, that he would bully me and everyone else. I always said the same thing: “How can Steve Jobs coming into our company not be a good thing? Even if it comes at my expense? Who wouldn’t want Steve Jobs to have influence over how a company is run?” I wasn’t worried about how he would act, and I was confident that if he did do something that was out of line, I could call him out on it. He was quick to judge people, and when he criticized, it was often quite harsh. That said, he came to all the board meetings and actively participated, giving the kind of objective criticism you’d expect from any board member. He rarely created trouble for me. Not never but rarely.